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Related Experiment Videos

Initial clinical experience with the Heartstring.

Toshinobu Kazui1, Hirosato Doi, Masato Suzuki

  • 1Department of Cardiovascular Surgery, Cardiovascular Center, Hokkaido Ohno Hospital, 4-1-1-30 Nishino Nishi-ku, Sapporo, Hokkaido 063-0034, Japan. t-kazui@pf6.so-net.ne.jp

The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai Zasshi
|November 8, 2006
PubMed
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The Heartstring device enables safe aortic anastomosis without clamping, showing good short-term outcomes in 87 patients, including high-risk individuals with diseased aortas.

Area of Science:

  • Cardiovascular Surgery
  • Medical Devices
  • Aortic Procedures

Background:

  • Proximal anastomosis traditionally requires aortic clamping.
  • The Heartstring device offers an alternative for aortic anastomosis without clamping.
  • Its application in both low-risk and high-risk patients warrants investigation.

Purpose of the Study:

  • To evaluate the initial outcomes of using the Heartstring device for proximal anastomosis.
  • To assess the safety and efficacy of the Heartstring in diverse patient populations, including those with diseased aortas.

Main Methods:

  • The Heartstring device was used in 87 patients (62 men, 25 women; age 48-86) between January and December 2004.
  • Preoperative assessment included computed tomography (CT) scanning and epiaortic echocardiography for aortic calcification grading.

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  • Patient risk was evaluated using the EuroSCORE, with postoperative angiography performed on day three.

    • Main Results:

    • CT scans showed no or varying degrees of calcification in the ascending aorta of 87 patients.
    • A total of 93 proximal and 149 distal anastomoses were performed, with 74.2% of distal anastomoses targeting the circumflex artery territory.
    • Postoperative coronary angiography confirmed all grafts were patent, indicating successful revascularization.

    Conclusions:

    • The Heartstring device facilitates safe proximal anastomosis, even in high-risk patients with diseased aortas.
    • Initial short-term outcomes were favorable, demonstrating the device's efficacy.
    • The device aids in bypassing the circumflex artery territory, though long-term follow-up is recommended.